Home / 15,845.46-21,867.54-9,132.18

Finding the Fourth Proportional to 15,845.46, 21,867.54 and 9,132.18

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Solution

The fourth proportional to 15,845.46, 21,867.54 and 9,132.18 is: 12,602.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,845.46 : 21,867.54 = 9,132.18 : x
  2. Step 2: Convert to fraction form
    15,845.46/21,867.54 = 9,132.18/x
  3. Step 3: Cross multiply
    15,845.46x = 21,867.54 × 9,132.18
  4. Step 4: Simplify right side
    15,845.46x = 199,698,311.44
  5. Step 5: Solve for x
    x = 199,698,311.44/15,845.46
  6. Step 6: Final answer
    x = 12,602.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.